Early electrocardiographic indices for predicting chronic doxorubicin-induced cardiotoxicity

•Early detection of cancer therapeutics-related cardiac dysfunction (CTRCD) remains a significant problem.•Electrocardiography (ECG) is the most realistic methodology in terms of cost-performance and invasiveness.•Visual fluctuations of the ECG waveform were investigated in doxorubicin-cardiotoxicity.•QTa prolongation and T-wave flattening may support early detection of CTRCD.